水压试验

TERMINAL TEST Part I Listening Comprehension (15 minutes) Directions: This part is to test your listening ability. It consists of 3 sections. Section A Directions: This section is to test your ability

发表于:2018-12-07 / 阅读(210) / 评论(0) 分类 当代考试

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(141) / 评论(0) 分类 火星生命

South Korean Students Stressed Over College Entrance Exam 韩国学生对高考倍感压力 This is the VOA Learning English Education Report. More than half a million South Korean students in their final year of high school recently took the univers

发表于:2018-12-16 / 阅读(112) / 评论(0) 分类 2014年VOA慢速英语(十一)月

And now for the last look. Those of you who watched our recent Education Special saw the exhausting study habits of South Korean students. The culmination of that pressure was last week when almost 700 000 South Korean high school students took the t

发表于:2018-12-24 / 阅读(108) / 评论(0) 分类 万花筒2011年

Heavy air on this Moment of Science. Here's an oxiny question: does air weigh anything? At first it might seem preplexing, on the one hand, air just seems floating, I mean, to say something is as light as air is to say its weighlessness, is isn't? Bu

发表于:2018-12-27 / 阅读(139) / 评论(0) 分类 英语时差8,16

[00:03.58]You will hear three pieces of recorded material. [00:08.15]Before listening to each one,you'll have time to [00:12.59]read the questions related to it. [00:16.25]While listening,answer each question by choosing A,B,C or D. [00:22.13]After l

发表于:2018-12-27 / 阅读(238) / 评论(0) 分类 最新版英语听力教程

The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro

发表于:2018-12-27 / 阅读(133) / 评论(0) 分类 探索与发现2014年

[00:00.00]1.W:I think I'll take my mother to that French restaurant on Main Street for her birthda [00:08.15]M:I hope it's not any time soon.They are usually booked up weeks in advanc [00:14.37]Q:What does the man mean? [00:18.44]2.M:Did you notice t

发表于:2018-12-30 / 阅读(170) / 评论(0) 分类 英语四级听力练习集锦

I will finish my middle school life soon, before I graduate, I need to take part in a very important test and it will decide which high school I will be in. I am so nervous now, I want to do my best and go to the ideal high school. My mother told me

发表于:2019-01-06 / 阅读(142) / 评论(0) 分类 英语作文

By Ron Corben Bangkok 08 January 2007 Residents take photos in front of the International Convention Center (CICC) main venue of the Association of Southeast Asian Nations (ASEAN) summit in the central Philippines city of Cebu, 10 Dec 2006 As the le

发表于:2019-01-07 / 阅读(213) / 评论(0) 分类 2007年VOA标准英语(一月)

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 英语小短文

AS IT IS 2015-08-06 Olympic Committee to Test Rio's Water for Viruses Rio de Janeiro, Brazil is busy preparing for the 2016 Olympics. On Sunday, the International Olympic Committee said it will begin testing the waters where swimmers and other athlet

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2015年VOA慢速英语(八)月

By Paula Wolfson Washington 27 September 2009 Top Obama administration officials say Iran will come under extreme pressure to disclose its nuclear intentions when envoys from Tehran sit down on Thursday in Geneva with representatives of the United S

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2009年(九月)

U.S. officials say a cap on a damaged oil well in the Gulf of Mexico appears to have a small leak, but they say there are no plans to remove the cap from the well. Engineers are carefully studying the well for any evidence of problems. Engineers spot

发表于:2019-01-13 / 阅读(131) / 评论(0) 分类 VOA标准英语2010年(七)月

A workboat pulls boom into place alongside the Pacific Responder oil skimming vessel in the Gulf of Mexico near the coast of Louisiana, 14 Jul 2010 BP has restarted a pressure test on a leaking oil well in the Gulf of Mexico to prepare for an effort

发表于:2019-01-13 / 阅读(134) / 评论(0) 分类 VOA标准英语2010年(七)月

A: Have you been feeling OK lately? B: My coach wants you to check my blood pressure. A: Has anyone ever told you that you had high blood pressure? B: I dont have any symptoms of high blood pressure. A: People with high blood pressure seldom know the

发表于:2019-01-15 / 阅读(161) / 评论(0) 分类 英语情景对话-健康

AUDIE CORNISH, HOST: The BP disaster in the Gulf of Mexico seven years ago showed just how hard it is to combat a massive oil spill. Cleaning oil from water is a challenge, especially on the open sea. Now the federal government is backing research on

发表于:2019-01-16 / 阅读(137) / 评论(0) 分类 2017年NPR美国国家公共电台3月

There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

发表于:2019-02-07 / 阅读(191) / 评论(0) 分类 英国学生科学读本

【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c

发表于:2019-02-16 / 阅读(120) / 评论(0) 分类 英语听力广播—Listening

NOEL KING, HOST: There is an uncomfortable irony at the center of treatment for high blood pressure. High blood pressure itself often doesn't make people feel that bad, but the medicines used to treat it can make people feel lousy, so some people don

发表于:2019-03-04 / 阅读(241) / 评论(0) 分类 2018年NPR美国国家公共电台4月
学英语单词
action of mesne profits
aditorial
all-electric control
antirap
apprehensio
backin
baihu decoction
barium sulfophenylate
Brenneman syndrome
carcinophora kawakamii
cassans
chinese characters
chromosome pairing
clean bill bought
collect-'em-up
colloid goods
colour plane
confer a medal on sb
counterboring drill press
crane for placing stoplogs
Crigler-Najjarsyndrome
croppers
cross-analysis
current consuming
cytological exponent
data ready flag
declaration for importation
determination of maximal expiratory flow rate
disinhibition versus constraint (dvc)
duplicate deposit tickets
entrepreneurial experience
ethyltriphenylsilane
fibrae sanguis
financial comparison
finite splitting gield
fish-eye view
frolickers
gained work
Giemsa(s)stain
grey cast iron shielding
hard sugar
Himalayan lilac
humble pie
hygeist
i swear
imaginacin
industrial station
infunde
interface charge
invariant form
known component
La Garita
least energy principle
Louverné
lvd
melish
meyerhold
misquotes
monkey drive
multispecies
Munn
Na-K-ATPase
no e-mail
Onderdendam
parcel rates
piecemeal stock acquisition
Poisson binomial trials model
polyanionic surfactant
Profichet's
rankenangioma
red harring
releasing factor
reservation wages
rubrofusarin
same as above
Saxifraga zekoensis
scirpenediol
semicontinuous mill
sharing the total profit
shaughnessy
shostak
side boob
statoconia
stayings
stink damp
store-and-forward basis
straightforwardly
swarved
Tamera(Tāmirah)
taxonomy of blue-green algae
temperature coefficient of current
time-contrast-index curve
topology record
track occupancy light indicator
trend toward
twin beds
unpicking rate
Urucurituba
vadstenas
Xylofagou
Zarp